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Speed Analysis of a Digital Controller in Time Critical Applications

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Traditionally, control algorithms are designed without a consideration of their real-time implementation details. The performance of a digital control system, besides the sampling period, depends on many variables, such as the control loop execution time, jitter, complexity of the control algorithm etc. In this paper attention is focused on the inter-action of the parameters of the scheduled tasks and on the performance of control loops closed with digital controller. A design approach that is based on the relative speed classification of the control system has been proposed. The approach is illustrated by the analysis of control systems developed for laboratory magnetic levitation process.
  • Department of Automatics AGH University of Science and Technology Al. Mickiewicza 30, 30-059 Kraków (Cracow), Poland,
  • [1] Aström K.J., Wittenmark B, Computer Controlled Systems,Prentice Hall, London, 1997.
  • [2] Arzen K-E., Cervin A., Eker J., Sha L., “An Introduction to Control and Scheduling Co-design”. In: 39th IEEE Conference on Decision and Control, Australia, Sydney 12 -15 December, 2000.
  • [3] Franklin G. F., Powell J. D., Emami-Naeini A.,Feedback Control of Dynamic Systems , Addison-Wesley Publishing Company, London, 1994.
  • [4] Grega W., “Stability of Distributed Control Systems with Uncertain Delays”. In: 8th IEEE International Conference on Methods and Models in Automation and Robotics ,Międzyzdroje, 2002, pp. 303-307.
  • [5] Middleton R. H., Goodwin G. C:Digital Control and Estimation : A Unified Approach , Prentice-Hall International, Englewood Cliffs, New Jersey, 1990.
  • [6] Nilsson J.,Real-time Control Systems with Delays. Ph. D. Dissertation, Sweden, Lund Institute of Technology, 1998.
  • [7] Piątek P.,Application of Specialized Hardware Architectures for Realization of Time-critical Control Tasks -Ph.D. Thesis (in Polish), Grega W. - supervisor. AGH University of Science and Technology, Department of Automatics, Poland, Kraków, 2007.
  • [8] Piłat A., “Programmable Analog Hardware for Control Systems Exampled by Magnetic Suspension”. In : Proc.Computer Methods and Systems, Kraków, Poland, 14 -16 November, 2005, pp. 143-148.
  • [9] Sagfors M., Optimal Sampled-Data and Multirate Control- Ph.D. Dissertation, Process Control Laboratory, Faculty of Chemical Engineering, Abo Akademi University, 1998.
  • [10] Schinkel G., Rantzer A., “Sample Data with Varying Sampling Time”. In: Proceedings of European Control Conference, Porto, Portugal, September, 2001, pp. 624-628.
  • [11] Vaccaro R. J., ,Digital Control a State-Space Approach McGraw-Hill, Inc., New York, 1995.
  • [12] Wittenmark B., Bastian B., Nilsson J., “Analysis of Time Delays in Synchronous and Asynchronous Control Loops”. In: Proc. of 37th IEEE Conference on Decision and Control, Tampa,USA, 12 -15 December,1998.
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